EVF on gh3 and em1

Quick question - how quickly does the evf display the live view after a picture is taken? Does it only last as long as the shutter is in operation, like a dslr, or does it remain blacked out momentarily like on my G6?

My head is still spinning from all of the customization options in the E-M1, but I believe the 'freeze frame' is adjustable. I think you can have it freeze for a desired period of time, or have it off altogether... I thought I read somewhere that they even encourage you turn the feature off when shooting in burst mode.